Installing conservatories across King’s Lynn

Established in 2005, L & O Windows Ltd specialises in the installation of conservatories, doors, windows, porches and carports across King’s Lynn and other areas in Norfolk. We also serve Cambridgeshire and Lincolnshire.

extensive knowledge
Quality workmanship
Well-established, family run business

Flying the flag in uPVC installations

L&O Windows Ltd is a well-established, family run uPVC installation company that has over 15 years of experience in the industry. We pride ourselves on our commitment to providing a professional and speedy service at all times, whilst maintaining the highest quality of work and keeping the cost to a minimum.

We do not subcontract our projects, so you can rest assured that you will get quality services from experienced installers. We can supply and install windows, doors and conservatories according to your specifications.

We offer a free home consultation and quotation to all our customers. Our consultants listen to your requirements and offer helpful design ideas to make your dreams come true.

We are regulated by IPWFI and are proud members of FENSA. All our services come with a 10-year insurance backed guarantee. Contact us with your queries today!

We can design, supply and install:

  • Windows, doors and conservatories
  • Porches and carports
  • Canopy roofs, bays and bow bays
  • GRP flat roofs
  • Fascias, soffits and gutters
  • what we offer

    Doors & Windows

    L & O Windows Ltd can install a wide range of doors and windows on properties across King's Lynn, Cambridgeshire, Lincolnshire and Norfolk. Contact us now.


    Replace the old roof of your conservatory with a beautiful warm roof. Warm roofs offer excellent thermal insulation and an aesthetically pleasing tiled roof finish. Your conservatory will stay cosy and warm during winter and nice and cool during summer.

    Gutters, fascias & soffits

    Need strong and durable fascias and soffits for your roofline? L & O Windows Ltd has over 20 years of experience in installing roofline products throughout King's Lynn and other areas in Norfolk, Cambridgeshire and Lincolnshire.

    We are supported by Window Installers Warehouse (WIW) – a new concept developed by one of the leading manufacturers and suppliers of uPVC doors, windows and conservatories. To find out more, call us on
    01553 767 857